BuildCrux vs Marble User
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
BuildCrux
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BuildCrux is AI construction estimating software for remodelers and small general contractors. Drop a PDF drawing set in β residential remodels, restaurants, dental fit-outs, retail buildouts, medspa, clinics, or pharma compounding centers β and walk out with priced line items inside the dollar range a senior commercial estimator would quote, in twelve minutes. THE WEDGE β AI ESTIMATING THAT ACTUALLY WORKS β’ Multi-pass pipeline on PDF drawing sets up to 500 pages β’ Residential + commercial TI: restaurants, dental, retail, medspa, clinics, pharmacies β’ Sub-bid scope filter β estimate only the kitchen, only the millwork, only the MEP (built for trade contractors bidding into a GC) β’ Validated against senior-estimator dollar precision: $686K on an 80-page pharma compounding center vs the $700Kβ$850K human-estimator reference range, with 48 line items β’ Non-drawing pages (energy reports, specs) auto-filtered out of takeoff β’ Cover-sheet auto-extracts address for project naming A FULL CONTRACTOR WORKSPACE, INCLUDED The estimating engine ships inside a complete workspace β win the bid and run the job from one platform. PROJECTS β Track your jobs with status (estimating, in progress, on hold, done), client info, timelines, tasks, team assignments. INVOICES & PAYMENTS β Build line-item invoices, send secure payment links via email or SMS, auto-track paid/pending/overdue. CONTRACTS & E-SIGN β Generate from templates, send for signature, store signed PDFs alongside the project. Multi-signer support. CHANGE ORDERS β Numbered CO system with approval workflow, cost-impact tracking, and a full audit trail. MILEAGE β Tap Start Trip and GPS auto-logs your route. Export at the IRS business rate for tax deductions. EXPENSES & RECEIPTS β Snap a photo, AI extracts vendor and amount and category. Tag by project for clean job costing. TEAM MANAGEMENT β Invite subs and office staff. Role-based permissions, private 1:1 DMs, project-scoped messaging, broadcasts. CUSTOMER PORTAL β Clients view invoices, sign contracts, approve change orders, pay online. QUICKBOOKS 2-WAY SYNC β Invoices, payments, customers, and expenses flow automatically between BuildCrux and QuickBooks. WHO IT IS FOR β’ Remodelers and home service pros doing residential and light-commercial work β’ Small general contractors bidding TI jobs (restaurants, dental, retail, medspa) β’ Subcontractors filing sub-bids into larger GC projects β’ Construction owners scaling past 1β2 crews BUILT FOR THE FIELD β’ Optimized for iPhone and iPad β’ No setup required β drop a PDF, get a bid in twelve minutes β’ Push notifications for invoice paid, customer reply, contract signed Privacy: privacy@buildcrux.com Support: support@buildcrux.com BuildCrux is a product of TackOn LLC. Terms of Use (EULA): https://buildcrux.com/terms Privacy Policy: https://buildcrux.com/privacy
Marble User
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The Marble User is a complete mobility and delivery solution that allows customers to book taxis for personal travel, schedule corporate rides for business transportation, and send parcels with real-time trackingβall from a single application. Users can choose from multiple vehicle categories, view estimated fares, track their ride or delivery live, make secure online or cash payments, save favorite locations, access trip history, and enjoy a seamless, reliable, and convenient booking experience.
Screenshots
Verdict
The clearest difference is in-app purchases: Marble User at none against BuildCrux's 4. BuildCrux's advantage is update cadence (every 3 days vs fortnightly) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. BuildCrux sells 4 in-app purchases, starting at $39.99 per month. Marble User asks for nothing beyond the download.
BuildCrux ships an update every 3 days, Marble User fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | BuildCrux | Marble User |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days β better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 16.6 |
| Further details β not scored | ||
| Size | 59 MB | 201 MB |
| Age rating | 4+ | 4+ |
| Developer | Tack On LLC | Shilpa Goyal |
In-app purchases
BuildCrux
- Solo Plan (Monthly)$39.991 Month
- Crew Plan (Monthly)$149.991 Month
- Office Plan (Monthly)$349.991 Month
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- Enterprise (Monthly)$999.991 Month
Marble User
No in-app purchases









